body {
    font-size: 15px;
    color: #111;
    text-align: left;
    max-width: 640px;
    margin: 0 auto;
    background: #f3f4f8;
}
* {
    margin: 0;
    padding: 0;
    box-sizing:border-box
}
.channel {
    display: -webkit-flex;
    overflow: hidden;
    padding: 5px 0 5px 0;
    justify-content: space-between;
    list-style: none;
}
.channel .channellist {
    width: 25%;
    float: left;
    overflow: hidden;
    margin-right: 0;
    border-radius: 28px 28px 28px 28px;
}
.channel .channellist a {
    position: relative;
    display: block;
    color: #5e5e5c;
    text-decoration: none;
}
.channel .channellist a img {
    width: 100%;
    border: none;
    vertical-align: middle;
    border-radius: 3px 3px  3px  3px ;
}
.channellist .chamsg {
    position:absolute;
    bottom: 2px;
    z-index: 2;
    width: 100%;
    color: white;
    text-align: center;
    letter-spacing: 1.2px;
    font-weight: 700;
    font-size: 16px;
}
.channellist .imgstyle {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    box-shadow: inset 0 -30px 15px rgba(0,0,0,.3);
}
.box {
    padding: 10px 20px 10px 20px;
}
.box h2{
    font-size: 22px;
    line-height: 130%;
}
.box1{
    padding: 50px 20px 10px 20px;
}
.box2{
    padding: 10px 20px 70px 20px;
}
.box1 h2{
    font-size: 22px;
    line-height: 130%;
}
.header-title {
    width: 75%;
    margin: 8px auto;
    height: 2.2rem;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.header {
    background-color: #fff;
    height: 2.8rem;
    line-height: 2.2rem;
    position: fixed;
    width: 100%;
    left: 0;
    top: 0;
    z-index: 10000;
    border-bottom: 1px solid #f2f2f2;
}
.ico-back-black {
    background-image: url(../image/back.png);
    margin-right: 0.09rem;
    width: 1.4rem;
    height: 1.4rem;
    margin-top: 0.4rem;
}
.header .ico {
    vertical-align: top;
}
.ico {
    background-size: cover;
    display: inline-block;
}
.header-wrap .left {
    position: absolute;
    left: 0;
    top: 0;
}
.header-wrap {
    min-width: 320px;
    max-width: 640px;
    margin: 0 auto 0 auto;
    text-align: center;
    color: #333;
    font-size: 1rem;
    position: relative;
    height: 2.2rem;
}
.iconfont {
    font-size: 24px;
}

.tab {
    width: 100%;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 999;
}

.tab ul {
    list-style: none;
}

.tab ul li {
    width: 25%;
    float: left;
    text-align: center;
    padding: 15px 0;
    background: #fff;
}

.tab ul li a {
    text-decoration: none;
    color: #333;
}